Ariz. Rev. Stat. § 14-3938
If other property of the estate is discovered after an estate has been settled and the personal representative has been discharged or after one year after a closing statement has been filed, the registrar, if the original application was or could have been brought under article 3 of this chapter, or the court, if the original petition was required to have been brought under article 4 or 5 of this chapter, on the application or petition of any interested person and on notice as provided in this chapter, may appoint the same or a successor personal representative to administer the subsequently discovered estate. If a new appointment is made, unless the court orders otherwise, the provisions of this title apply as appropriate, but a claim previously barred may not be asserted in the subsequent administration.
A.R.S. § 14-3938